isotone

[ ahy-suh-tohn ]

noun

, Physics.

1. one of two or more atoms having an equal number of neutrons but different atomic numbers.

isotone

/ ˈaɪsəˌtəʊn /

noun

1. one of two or more atoms of different atomic number that contain the same number of neutrons

Word History and Origins

Origin of isotone¹

First recorded in 1930–35; iso- + tone